package inputDemo;

import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;

public class Demo2 {
    public static void main(String[] args) throws IOException {
        try (InputStream inputStream = new FileInputStream("d:/test.txt")){
            while (true){
                byte[] bytes = new byte[1024];
                int n = inputStream.read(bytes);
                if (n == -1) {
                    //读取完毕。n 就是 -1
                    break;
                }
                for (int i = 0; i < n; i++) {
                    System.out.printf("ox%x ",bytes[i]);
                }
            }

        }
    }
}
